Extraction of Fish Oil from Fish Viscera
Fatma
Abd El-Rahman
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza , Egypt. Postal Code 12613.
author
Nesreen
Mahmoud
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza , Egypt. Postal Code 12613.
author
Abo El Khair
Badawy
Algal Biotechnology Unit, Fertilization Technology Department, National Research Center, Giza, Egypt. Postal Code 12622.
author
Samy
Younis
Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, Giza , Egypt. Postal Code 12613.
author
text
article
2018
eng
Abstract: In this study, fish oil was extracted from tilapia and mackerel viscera by the wet rendering extraction method. Using water base extraction method with more yield is a green chemistry which is better than using solvent extraction which is hazardous chemicals. The extracted fish oil is intended to be used for the production of biodiesel in further investigation. Increasing the temperature from 80ºC to 100ºC had significant effect on the extracted oil yield. Centrifugation had no significant effect on oil extraction at high cooking temperature (100 ºC) and therefore can be omitted from the extraction process. The results showed the applicability of producing fish oil from Tilapia viscera. The oil yield obtained from Tilapia viscera was about 20% which was higher than that obtained from Mackerel viscera (7% higher). Increasing cooking time in the range of 30 to 60 min had a significant effect on the extracted oil yield. 60 min cooking time was found to be optimum. The extracted fish oil was analyzed for its viscosity, moisture content, free fatty acids, acid value and fatty acids composition. The results indicated the suitability of fish oil for using for biodiesel production.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
225
235
https://ejchem.journals.ekb.eg/article_5430_24f6b71571c381ffa46cdf5d550204b0.pdf
dx.doi.org/10.21608/ejchem.2018.2798.1230
Phytochemical Study, Antioxidant and Cytotoxic Activities of Brassica rapa L. leaves Extract and Its Silver Nanoparticles
Reham
Shafek
Chemistry of Tanning Materials and Leather Technology Department, National Research Centre, Dokki, Cairo, Egypt.
author
Helana
Michael
Chemistry of Tanning Materials and Leather Technology Department, National Research Centre, Dokki, Cairo, Egypt.
author
Ahmed
Sayed
Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt.
author
Ahmed
Ibrahim
Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt.
author
Ahmed
Al-sayed
chemistry of tanning materials and leather technology department-National Research Center- Chemical Industries division
author
text
article
2018
eng
Abstract Chemical constituents, antioxidant activities and cytotoxic effects of the 70% aqueous ethanolic extract of Brassica rapa L.(six fractions F1-6) of (BRE) were investigated. Its chromatographic, chemical and spectral analysis detected the existence of a new natural isorhamnetin glycosides namely; isorhamnetin 3-O-β-D-glucopyranosyl(1→2)-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside (L2) together with fifteen known flavonoid compounds; five of the type kaempferol glycosides, four of quercetin glycosides, three of isorhamnetin glycosides and three aglycones. Silver nanoparticles of the ethanolic extract were also prepared which gave nanoparticles less than 20 nm.The two extracts (ethanolic extract and its nanoparticles) were evaluated for their potential cytotoxicity and as an antioxidant which showed that, the highest antioxidant extract was NBRE followed by BRE. The BRE and its NBRE were evaluated against HELA cells (human Cervical cancer cell line) and M-NFS-60 cells (human Mouse Myelogenous Leukemia carcinoma) with Doxorubicin as standard drug which NBRE gave high activity for both two cell line.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
237
247
https://ejchem.journals.ekb.eg/article_5294_06c270bd89afb1fee4281425713757f9.pdf
dx.doi.org/10.21608/ejchem.2018.2605.1211
Determination of Dinotefuran and Thiamethoxam Residues in Pepper Fruits under Greenhouse Conditions using the QuEChERS Method and HPLC/DAD
Mansour
Rabie
Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Egypt
author
El-Desouki
Ibrahim
Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Egypt
author
Dalia
Elhafny
Pesticides Residues and Environmental Pollution, Central Agricultural Pesticides Laboratory, Agricultural Research Center, Giza, Egypt
author
Mohammed
Bayoumi
Lecture Assistant Economic Entomology and Pesticides (Pesticides Branch) Faculty of Agriculture, Cairo University
author
text
article
2018
eng
Determination of dinotefuran and thiamethoxam residues levels in pepper samples which were collected randomly at 0, 1, 3, 5, 7, 10, 15 and 21 days after treatment using quick, easy, cheap, effective, rugged, safe (QuEChERS) method and cleanup step utilizing solid-phase extraction (SPE) followed by determined by high-performance liquid chromatography with diode-array detection (HPLC/DAD). Dinotefuran and thiamethoxam were recovered within 77-80% and 78-112%, respectively at the spike levels (0.01 - 1 mg/kg) in pepper samples with relative standard deviations (RSDs) lower than 3%. Good linearity was achieved for dinotefuran and thiamethoxam with an excellent correlation coefficient of R2 > 0.996 and the matrix matched calibration also showed good linearity with determination coefficients R2 > 0.98. The initial deposits of dinotefuran and thiamethoxam in pepper fruits were 6.59 and 1.38 mg/kg, respectively. The half-life period (RL50) of tested pesticides on pepper fruits were 2 and 3.11 days for dinotefuran and thiamethoxam, respectively. According to maximum residue level (MRL) (0.01 mg/kg for dinotefuran and 0.7 mg/kg for thiamethoxam) the pre-harvest interval (PHI) was 11 and 4 days, respectively.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
249
257
https://ejchem.journals.ekb.eg/article_5544_2ed71d7a079e623fe8fa68be8a9473bf.pdf
dx.doi.org/10.21608/ejchem.2018.2803.1227
Preparation and Characterization of Melt Spun Polypropylene / Montmorillonite Nanocomposite Fibre for Ibuprofen Drug Delivery Application
Nadia
Elsayed
Polymer and pigment department, National research centre
author
Mashari
Elsharif
Faculty of Science - Tabuk Universty
author
Wael
Mohamed
National research centre
author
text
article
2018
eng
Polypropylene /Montmorillonite clay nanocomposite was prepared after modification of Montmorillonite (MMT) clay using Dimethyl di (hydrogenated tallow) ammonium chloride modifier. The prepared nanocomposite was characterized using scanning electron microscope (SEM), Fourier-transform infrared (FTIR) and thermal gravimetric analysis (TGA). Fibers of pure polypropylene (PP) and polypropylene/montmorillonite clay nanocomposite (PP/MMT) were produced using melt spinning technique and the prepared fibers were characterized using mechanical properties, water absorption in addition to SEM analysis. The results show that the nanocomposite fibers have higher thermal stability, higher mechanical properties, and lower water absorption than pure polypropylene fibers in addition to high degree in homogeneity between polypropylene and MMT clay in polypropylene/montmorillonite nanocomposite. Ibuprofen drug (IBU) was successfully loaded into polypropylene and polypropylene/montmorillonite clay nanocomposite fiber via solvent immersion method with different drug fiber ratio in presence of glyoxal cross linker. Drug release profile was studied for 120 min and the results showed that about 33% from the initial loaded drug was released from the fiber after one hour of release starting time.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
259
268
https://ejchem.journals.ekb.eg/article_5703_e506a01feee344e44b6ef6d49f027eb0.pdf
dx.doi.org/10.21608/ejchem.2018.2949.1244
Preparation and Characterization of Modified Reclaimed Asphalt by Using Styrene – butyl Acrylate Nanoemulsion Copolymer
Abdelrahman
Naser
Al Azhar University
author
Hamada
Abd El-Wahab
Alazher University
author
Mohammed
Abd El-Fattah
Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt
author
Abdelzaher
Mostafa
Faculty of Engineering at Mataria, Helwan University, Cairo, Egypt
author
Ahmed
Sakr
Applied chemistry, Faculty of Science, Alazher University, Cairo, Egypt
author
text
article
2018
eng
Reclaimed Asphalt Pavement (RAP) is beneficial because it provides and decreases the cost of the construction, while increasing environmental sustainability. The main purpose of this study is to investigate the best practice of RAP in Egypt, in order to determine the effect of using 100% RAP instead of using virgin aggregates and asphalt. The study also investigates the effect of thermoplastic elastomers polymer as asphalt modifier. Also, improve the mechanical and physical characteristics and hence improving the quality asphalt paving, increase asphalt-paving age and reduce the cost. Nano acrylate copolymer has been prepared with different wt.% and was tested for Fourier Transforms Infrared (FTIR), Molecular Weight (Mwt), Thermo Gravimetric Analysis (TGA) and Transmission Electron Microscopy (TEM). A 4wt.% of the prepared nanoemulsion copolymer was mixed with virgin asphalt as a polymer modifier, to improve and reuse of the RAP. The modified binder was tested. The tests conducted include penetration, kinematic viscosity, softening point and specific gravity. Application of Marshall mix design types; Hot Mix Asphalt (HMA), Warm Mix Asphalt (WMA) and Cold in place Recycled (CIR). Four different mix design were used; control mix contains virgin asphalt by HMA, where the other three mix designs were Polymer Modified Asphalt (PMA) by HMA, WMA and CIR. The research results showed that, using 4 wt.% of the prepared nanoemulsion copolymer producing HMA and WMA with higher stability compared to the control mix and CIR.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
269
280
https://ejchem.journals.ekb.eg/article_6359_a400dc9333202c4bbf9a4e55c64f6024.pdf
dx.doi.org/10.21608/ejchem.2018.2956.1245
Synthesis, Characterization and Dielectric Properties of Novel Metal Oxide - Phthalocyanine Nanocomposites
Alia
Salama
Physical Chemistry Department, National Research Center, Dokki, Giza, Egypt.
author
Amal
Abd El-Karim
Physical Chemistry department, NRC, Dokki, Giza, Egypt.
author
text
article
2018
eng
Organic and metal-organic polymers which have electrical properties have opened up a promising field in material science and engineering. Phthalocyanine (H2Pc) and metal oxide– phthalocyanine (MO-Pc) where (MO = ZnO, NiO, FeO and CoO) were prepared by urea fusion technique. The prepared composites were identified by means of Fourier transform infrared spectroscopy (IR) and X-ray diffraction (XRD). The XRD data indicate that the ZnO-Pc and NiO-Pc are highly crystalline and particle sizes are 13 nm and 9 nm respectively. The dielectric properties including dielectric constant ɛ' and dielectric loss ɛ'' of the prepared composites were calculated from the experimental capacitance values in the frequency range 100 Hz to 5MHz and in the temperature range of 25oC to 120oC. Generally, ɛ' are found to be decreased with increasing frequency and increase with increasing temperature. It is obvious that, appearance of peak for each MO in the dielectric loss suggests the presence of relaxing dipoles in the MO-Pc nanocomposites. The relaxation time τ, activation enthalpy ΔH and the entropy change ΔS of the prepared composites were calculated. The obtained data were correlated to the nature of doping metal oxide.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
281
294
https://ejchem.journals.ekb.eg/article_5509_f6cc4b2b875a81275ace12ffa1a5c321.pdf
dx.doi.org/10.21608/ejchem.2018.2563.1207
In vitro Antimicrobial Activity Evaluation of Newly Synthesized Furochromone Schiff Base Complexes
Mohammed
Shakdofa
Department of Inorganic Chemistry, National Research Centre, El-Bohouth St., Dokki, Cairo, Egypt
author
Hanan
Abdel Hady Mousa
Department of Inorganic Chemistry, National Research Centre, El-bohouth St., P.O. 12622, Dokki, Cairo, Egypt
author
Ammar
Labib
Inorganic Chemistry Department, National Research Centre, El Behoos St., Dokki, Cairo, Egypt.
author
Amira
Abd El-All
Department of Natural and Microbial Products, National Research Centre, El-bohouth St., P.O. 12622, Dokki, Cairo, Egypt
author
Fatma
Bassyouni
Department of Natural and Microbial Products, National Research Centre, El-bohouth St., P.O. 12622, Dokki, Cai-ro, Egypt
author
text
article
2018
eng
A series of VOII, NiII, CuII, CoII, MnII, CdII and ZnII complexes of new Schiff base ligand resulting form 4-aminoantipyrine and Furobenzopyrone were prepared. The structure of newly synthesized compounds (1-8) was proven by studying their elemental analyses, spectral data (IR, NMR, UV-vis), molar conductivity and magnetic susceptibility. In addition the in vitro antimicrobial activi-ty of all compounds was examined. The results cleared that nickel and zinc complexes exhibited promising activity compared with standard drug (chloramphenicol).
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
295
304
https://ejchem.journals.ekb.eg/article_5274_2ea8ff077ad272073682b7ea68f1d159.pdf
dx.doi.org/10.21608/ejchem.2018.2222.1180
Direct Hydroxylation of Benzene Over Cu-Exchanged Hydroxy-Sodalite
Eman
Hegazy
Associate Professor in king Abdulaziz University
Associate Professor in National research Centre
author
Islam
Abd El Maksod
Associate Professor in king Abdulaziz University, Associate Professor in National research center
author
Samia
Kosa
Chemistry department, Faculty of Science, King AbdulAziz University, Jeddah, Saudi Arabia
author
Laila
Alhrbi
associated professor in king abdulaziz university ,jeddah
author
text
article
2018
eng
Hydoxysodalite was prepared by two different methods; using normal hydrothermal heating, and using a microwave assistant. Some heavy metals were selected and their removed capacity was chosen as a probe indicator for the properties of both methods. X-ray diffraction (XRD) was used for follow-up the crystallinity and the degree of crystal destruction upon copper ion exchange. The copper ion exchanged zeolite was used in hydroxylation of benzene as probe reaction. The results showed that the microwave assisted prepared zeolite had lower crystallinity. Also, it showed a higher stability toward the ion exchange and higher catalytic activity per active centers.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
305
311
https://ejchem.journals.ekb.eg/article_5433_d47307ae0861dd24fcec5547f327af70.pdf
dx.doi.org/10.21608/ejchem.2018.2744.1221
Flavonoid from Stem Bark of Aquilaria microcarpa
Alfinda
Kristanti
Chemistry Department, faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
author
Mulyadi
Tanjung
Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
author
Okky
Rahayu
Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
author
text
article
2018
eng
7-hydroxy-5,3’,4’-trimethoyflavon (1), a flavonoid, was isolated from stem bark of Aquilaria microcarpa, a species belonging to Thymelaeaceae that has not been investigated. The chemical structure has been elucidated based on spectroscopy FTIR, NMR and HRESI-MS analysis
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
313
316
https://ejchem.journals.ekb.eg/article_5293_25abc91a3300aa678c50655657299a40.pdf
dx.doi.org/10.21608/ejchem.2018.2173.1174
Herbal Extract as an Ecofriendly Antibacterial Finishing of Cotton Fabric
A.
El-Shafei
textile research division , national research center, Dokki, Cairo Egypt
author
Sahar
Shaarawy
textile research division , national research center, Dokki, Cairo Egypt
author
F.H.
Motawe
textile research division , national research center, Dokki, Cairo Egypt
author
R.
Refaei
textile research division , national research center, Dokki, Cairo Egypt
author
text
article
2018
eng
An ecofriendly antimicrobial finishing agent has been prepared from herbal extracts " Chamomile, sage and green tea " which have been applied to cotton fabric in presence and absence of free formaldehyde crosslinking agent (Glyoxal) using pad, dry cure method. Antimicrobial properties of treated fabrics have been improved which make it more important and inevitable finish for garments. Therefore, cotton fabric was treated with each antibacterial extract at various concentrations 1, 2, % bwf using pad-dry –cure method. Treated fabrics have been evaluated for their antimicrobial activity. The Chamomile, sage and green tea treated fabrics exhibited antimicrobial activity against both gram negative and gram positive bacteria and yeasts unicellular fungi. The treated cotton fabrics have shown an excellent antimicrobial activity even after washing 10 cyclic wash. The samples were examined for SEM and physical properties of cotton including, tensile strength and elongation at break Abrasion Resistance, Water & air permeability and Stiffness of the fabric. also the treated fabric show very good results for |UV protection.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
317
327
https://ejchem.journals.ekb.eg/article_5295_cd95c7a21fe8b226d61b859277fb7c11.pdf
dx.doi.org/10.21608/ejchem.2018.2621.1209
Technological Evaluation of Acrylic Acid /Cassia Saligna Gum Grafted products as Thickener in Textile Printing
Mohamed
El-Molla
Al Jouf University is located in Al-Jawf, Saudi Arabia.
author
A.A.
Abd El-Rahman
Textile Research Divisions, National Research Centre ElBohouth St., Dokki, Giza, Egypt.P.O.12622.
author
text
article
2018
eng
Galactomannan gum extracted from Cassia Saligna seeds was subjected to graft copolymerization using acrylic acid. Thegraft copolymerization has been performed using potassium persulphate as initiator.The rheological property of the grafted product and it is utilization as a thickening agent in printing cotton fabrics with reactive dyes was thoroughly investigated. The rheological properties and theviscosity at various rates of shear were investigated. Furthermore, the results obtained indicate that grafted product gum could be used safely as a thickener in printing of cotton fabric, using silk screen printing instead of the commercial thickener of sodium alginate.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
329
336
https://ejchem.journals.ekb.eg/article_5431_cc3c9c0f05d451bd07afe12f4c639035.pdf
dx.doi.org/10.21608/ejchem.2018.2617.1208
Flotation and Enhanced Spectrophotometric Determination of Uranium (VI) in Environmental Samples
Magda
Akl
Professor of Analytical Chemistry, Faculty of Science, Mansoura University, Egypt
author
Rabeaa
Masoud
Department of chemistry, Faculty of sience, Mansoura university, Egypt
author
text
article
2018
eng
A green and simple technique for the separation via flotation and spectrophotometric detection of U(VI) in water and real ore samples is presented in this research study in which the heterocyclic azo dye 4-(2pyridyl azo) resorcinol (NaPAR) is used to preconcentrate the uranyl(VI) ions to form a reddish complex in the aqueous solution in the pH range 5.0.-6.0. The oleic acid (HOL) surfactant was used to float the formed 1:1 U(VI):NaPAR complex successfully and completely to the scum layer. The physicochemical characteristics of the proposed analytical technique have been determined. Under optimum parameters, the following physicochemical characteristics were obtained. Beer's law was obeyed up to 300 µg l-1, the correlation coefficient (R2) was calculated to be R2 = 0.9995. According to IUPAC recommendations, the limit of detection (LOD) and limit of quantification (LOQ) are 0.9 and 3.1 µg l-1 (n = 5), respectively. The molar absorptivity (Ɛ) is 0.63X106 l mol-1cm-1 in the scum layer with a preconcentration factor 100 and the RSD (n=5) is 2.5%. Excess amount of the chelating agent NaPAR was used to mask the effects of diverse ions on the flotation efficiency .The proposed procedure was applied to determine U(VI) in water samples as well as in U-Th and granite ore samples. The separation mechanism is explained.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
337
348
https://ejchem.journals.ekb.eg/article_5432_65aa53760d012fa3914da9143d8f0f00.pdf
dx.doi.org/10.21608/ejchem.2018.2667.1214
Rheological and Physical Properties of Ionic Liquids with Ammonium Cations as Synthetic Lubricants
Raghda
El-Nagar
Egyptian Petroleum Research Institute. P.O. Box 11727, Nasr City, Cairo, Egypt
author
S.K.
Attia
Egyptian Petroleum Research Institute. P.O. Box 11727, Nasr City, Cairo, Egypt
author
S.A.
Rizk
Chemistry Department, Faculty of Science, Ain Shams University.
author
D.I.
Osman
Egyptian Petroleum Research Institute. P.O. Box 11727, Nasr City, Cairo, Egypt
author
R.I.
Abdallah
Egyptian Petroleum Research Institute. P.O. Box 11727, Nasr City, Cairo, Egypt
author
text
article
2018
eng
Ionic liquids possess different properties which make them a high potential as lubricants. In our work series of five ammonium salts ionic liquids were synthesized by using different C-chain carboxylic acids with ethanol amines and evaluated. The physicochemical properties and rheological behavior investigated for their potential use as synthetic lubricants. The prepared Ils show high thermal stability, good fluidity characters and the viscosity increases with increasing C-number (become thicker) which converted from liquid phase to semisolid phase (grease). Ia-Ic show Newtonian behavior behavior for and pseudoplastic behavior for Id and Ie.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
349
360
https://ejchem.journals.ekb.eg/article_5508_8fb4d020668c02a1113b51d4610936d2.pdf
dx.doi.org/10.21608/ejchem.2018.2287.1189
Synthesis [1-(4-acetylphenyl)-3-(2-methylphenyl)]triazene: NMR, Vibrational, X-ray Crystallography Characterization with HF/DFT Studies
Reza
Soleymani
Young Researchers and Elite Club, Shahr-E-Rey Branch, Islamic Azad University, Tehran, Iran
author
Abolfazl
Aghaei
Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
author
Elahe Abdolahi
Shahvali
Department of Chemistry, Dezful Branch, Islamic Azad university, Dezful, Iran.
author
text
article
2018
eng
[1-(4-acetylphenyl)-3-(2-methylphenyl)]triazene (AMT) was synthesized by experimental methods, its chemical and spectrometric properties was studied by FT-IR, FT-Raman,1H-NMR,13C-NMR and X-ray singlecrystal diffraction methods. The obtained results showed that this structure hasorthorombic system with space group of pbca and eight molecules in unit cell. Its unit cell parameters comprise a=8.0665(2), b=8.0019(2) and c=21.5249(5). Then molecular number of [1-(4-acetylphenyl)-3-(2-methylphenyl)]triazene (AMT) structure has been studied by HF/DFT methods. However, FT-IR, FT-Raman,1H-NMR, 13C-NMR spectra were analyzed that the obtained results for vibrational spectra and amount of chemical shift correspond significantly with theoretical methods. Some structural parameters such as bonds length, bonds angle and dihedral angle were studied using theoretical and experimental methods. The parameters such as thermodynamical parameters, dipole moment, HOMO and LUMO energetic values, electrophilicity (ω), chemical potential(μ), chemical hardness(η) and max amount of electronic charge transfer (ΔNmax) are calculated for this compound in conclusion. The proposed methods were successfully applied to the determination of vibrational spectra, chemical shift amounts and structural parameters.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
361
378
https://ejchem.journals.ekb.eg/article_5507_6d313356597b62f270214bd61cbc03b1.pdf
dx.doi.org/10.21608/ejchem.2018.2176.1173
Multifunctionlization of Viscose Fabric through Loading with Organic and Inorganic Nanostructural Materials
Lamiaa
El-Gabry
Proteinic and Man made Fibres Department, National Research Centre (Scopus affiliation ID 60014618), 33ElBehouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Sahar
Shaarawy
Pre-treatment and Finishing of Cellulosic Fibers Department, National Research Centre (Scopus affiliation ID 60014618), 33ElBehouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Amira
Abou El-Kheir
Proteinic and Man made Fibres Department, National Research Centre (Scopus affiliation ID 60014618), 33ElBehouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Zeinab
Elgory
Clothing and Knitting Industrial Research Department, Textile Research Division, National Research Centre (Scopus affiliation ID 60014618), 33ElBehouth St. (former
El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
A.
Hebeish
Pre-treatment and Finishing of Cellulosic Fibers Department, National Research Centre (Scopus affiliation ID 60014618), 33ElBehouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
text
article
2018
eng
VISCOSE fabrics were treated with environmentally nano-particles namely; nano-clay, nano-chitosan and nano-cellulose. Each of three nanoparticles was introduced in a solution containing reactive cyclodextrin (RCD) and sodium carbonate (Na2CO3) and the treatment was performed using the pad dry-cure technique. Topographical investigation of the said nano-particles was conducted using transmission electron microscopy (TEM). The change of morphological structure of the treated fabrics relative to the native one was examined using high resolution field emission scanning electron microscope. FTIR and nitrogen content of the treated fabrics compared to the untreated ones were assessed. The changes in some physico-mechanical characteristics of the treated viscose fabrics were monitored; namely abrasion, thickness, air permeability and moisture sorption test. The colour strength and washing fastness to dyed fabrics with both direct and reactive dyestuffs were evaluated. The effect of treatment of viscose on its resistance towards various microorganisms was appraised. Radar chart of the treated as well as untreated fabrics was calculated.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
61
v.
2
no.
2018
379
389
https://ejchem.journals.ekb.eg/article_5751_62f8af805503b4320d17453108a54a9f.pdf
dx.doi.org/10.21608/ejchem.2018.2809.1240